At that rate, I'll have the car for 18 months and over 20k miles on the same oil.

The maintenance agreement will change the oil at one year or 15,000 miles, whichever comes first.

As for 0-60, g-meter apps, inexpensive accelerometers, self-timed, etc. results are useless. Only legitimate dragstrip runs will tell you anything meaningful, shy of expensive metering equipment and then be prepared to be disappointed. There are some postings for quarter mile runs, 60 foot times, etc. if you dig.